Good luck in the niche market? 49/50 things I make are custom 'one off' projects. I make a living from it. You would be surprised how many things around you are custom made look at basic things I do like this panel work at a hospital. That's custom made, you can't just have a standard size set of panels to fit all hospitals can you?
As for you saying about the exhausts which are suppose to be the best. They are that was my point you missed. They are proven to give these gains. I could go knock a couple of exhausts up this afternoon and sell them claiming to give a 10BHP gain but the fact is they won't.
People in the pit bike scene just claim a lot of things (like how much power a doma rep adds) which aren't at all true an can't be proven. You can tell that these exhausts have had a lot of time and development put into them to get the best out your engine.
They are made out of stainless steel and not the stainless steel you see other exhausts are claimed to be made out of, they are made out of proper stuff. Most Chinese exhaust are just coated.
As for the weight things it's completely irrelevant the weight different would be completely unnoticeable. You seem to be forgetting these are still only pit bikes, not motogp bikes. If he wanted to save weight they would be made outt of titanium but then once again the price would rise.
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